Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The annotations already declare readOnly, idempotent, non-destructive and non-open-world behavior, so the safety profile is fully covered structurally. The description adds value by enumerating the returned fields, which tells the agent what a result row looks like. It does not disclose ordering, default page size behavior beyond the schema, or whether all gateways or only some statuses are returned.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

One compact sentence with no filler, and the most useful information (scope and returned fields) comes first. The only structural weakness is that it reads as a fragment rather than a statement of action.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple read-only list tool with one fully documented parameter and no output schema, the definition is nearly sufficient: scope and returned fields are stated. The residual gap is the absence of guidance on relationship to the gateway-issues and gateway-logs siblings.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

There is a single parameter (limit) and the schema description coverage is 100%, with min/max and a default of 20 already documented. The description adds nothing beyond that, which is the expected baseline when the schema does the work.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names the resource (the account's MCP gateways) and even parenthesizes what a gateway is (hosted MCP servers made from an OpenAPI spec), plus the fields returned: name, status, live URL, tool count. It only falls short of a 5 because it is a noun phrase with no verb and does nothing to distinguish itself from siblings like list_gateway_issues or list_gateway_logs.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no statement of when to call this versus alternatives. Given nearby tools such as list_gateway_issues and list_gateway_logs, a sentence like 'use for inventory, not for diagnostics' would have removed real ambiguity; nothing here does that.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.